ABSTRACT

Every correlation has a p-value, or probability value, associated with it. There is a complicated story for where p-values come from, but that story is for another time. Importantly for us, the p-value does an amazing thing—it tells us if a correlation is worth paying attention to. The technical name for correlations worth paying attention to is statistically significant. p-values range from 0 to 1, and really small p-values (typically less than .05) mean that the correlation is statistically significant. When p-values aren't really small (typically greater than .05), the correlation is considered to be statistically insignificant, or not worth paying attention to.